Estimated internal exposure doses due to indoor radiocaesium contamination in residential houses after the Fukushima nuclear accident.

ABSTRACT: This work first reports the estimation of the internal exposure from ingestion of house dust and inhalation of aerosol, by employing a measured data on ¹³⁷Cs activities, bioaccessibility (solubility to water and 1 M HCl), and particle size distribution. The house dust and aerosol samples were collected during the actual indoor cleaning by vacuuming and dusting, from 65 houses and buildings in proximity to the Fukushima Daiichi nuclear power plant (FDNPP) (1.6-16.1 km from the FDNPP) during a period from April 2016 to January 2019. Committed effective doses for an adult owing to the ingestion of house dust of 20 mg per day, which adheres to one's hands through the hand-to-mouth, and those owing to inhalation of aerosol during dusting for 1.5 h while wearing a mask, were calculate

SUBMITTER: Yoshida-Ohuchi H 

PROVIDER: S-EPMC7560611 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature